Miller Electric OM-4409 - Manual (Page 43)

OM-4409 Page 39
SECTION 8 − OPERATING OPTIONAL BATTERY CHARGER
8-1. Battery Charge Controls
1 Output Selector Switch
NOTICE − Do not switch under load. Stop en-
gine or set Process/Contactor switch to any
Remote position before switching.
Use switch to select weld or battery charge
output. Output automatically decreases (but
does not stop) when terminal voltage is 15 to
25 percent above required battery voltage.
.
Before connecting charging cables, place
Output Selector switch in position match-
ing voltage of battery being charged.
When done charging, stop engine or set Pro-
cess/Contactor switch to any Remote On/Off
Switch Required position. Move Output Selec-
tor switch to AC Weld or DC Weld position.
803 231-A / 210 149-B
1
8-2. Determining Battery Charging Current
1 Battery Charging Current
Chart
Find battery cold crank amp (CCA)
rating on battery. Use CCA rating
on chart to find charge current set-
ting for battery.
EXAMPLE: If battery CCA rating is
500, charging current from chart is
100 amperes.
Do not exceed charging current
found on chart. For longer battery
life, use lowest charge rate
possible.
1
0
50
100
150
200
250
300
350
400
0 500 1000 1500 2000
BA
TTER
Y CHARGING CURRENT (AMPS)
BATTERY COLD CRANK AMP RATING (CCA)
142 975-B